Question

我有这个Oracle存储过程：

create or replace
procedure bns_saa_message_get()  <--- PROBLEM IS HERE BC I HAVE NO PARAMS TO PASS
AS
begin
  select HostNumber, SAAMessage from BNS_SAA_MESSAGES where HostNumber=(select max(HostNumber) from BNS_SAA_MESSAGES);
end;

当我尝试编译它时出现以下错误：

Error(2,31): PLS-00103: Encountered the symbol ")" when expecting one of the following:     <an identifier> <a double-quoted delimited-identifier>    current

问题：
如何在不需要传递任何参数的情况下创建存储过程？

Answer 1

完全省略括号：

create or replace
procedure bns_saa_message_get
AS

railroad diagram in the documentation表示如果包括左括号，则至少需要一个参数。

Answer 2

删除括号：

CREATE OR REPLACE PROCEDURE bns_saa_message_get
AS
BEGIN
   SELECT hostnumber, saamessage
     FROM bns_saa_messages
    WHERE hostnumber = (SELECT MAX (hostnumber) FROM bns_saa_messages);
END;

编辑：

回答你的第二个问题......

CREATE OR REPLACE PROCEDURE bns_saa_message_get
AS
   v_hostnumber bns_saa_messages.hostnumber%TYPE;
   v_saamessage bns_saa_messages.saamessage%TYPE;
BEGIN
   SELECT hostnumber, saamessage
     INTO v_hostnumber, v_saamessage 
     FROM bns_saa_messages
    WHERE hostnumber = (SELECT MAX (hostnumber) FROM bns_saa_messages);
END;

这假设您只从查询中返回一行.... 如果您获得多行，则必须bulk collect进入集合。

Answer 3

如果没有任何参数，请删除（）。

示例：procedure bns_saa_message_get（） - ＆gt;程序bns_saa_message_get AS

PLS-00103：遇到以下其中一项时遇到符号“）”：

3 个答案: